Changes in power_abm.c

7d447370678c4c4d335fd0422341b76f8cf8f3b3 - drm/amd/display: Handle aux_inst for connectors without DDC pin

Thu, 21 May 2026 17:06:22 +0200

drm/amd/display: Handle aux_inst for connectors without DDC pin[Why & How]Must use an alternative codepath to access AUX channel whenlink->no_ddc_pin is set.Reviewed-by: Harry Wentland Signed-off-by: Gabe Teeger Signed-off-by: Matthew Stewart Signed-off-by: Ray Wu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher List of files: /linux/drivers/gpu/drm/amd/display/modules/power/power_abm.c

d7e41c6f513ef59e890d9fb34a2631fdf6d87789 - drm/amd/display: Refactor Replay functionality into dedicated power_replay module

Tue, 28 Apr 2026 13:54:09 +0200

drm/amd/display: Refactor Replay functionality into dedicated power_replay module[Why]Extract all Replay related functions from power.c andpower_helpers.c into a new power_replay.c module forbetter code organization and maintainability.[How]Create new power_replay.c file containingReplay-related functions moved from power.cand power_helpers.c . Update mod_power.h withfunction declarations. Maintain forwarddeclaration for type compatibility.Reviewed-by: Robin Chen Signed-off-by: Lohita Mudimela Signed-off-by: Ivan Lipski Tested-by: Dan Wheeler Signed-off-by: Alex Deucher List of files: /linux/drivers/gpu/drm/amd/display/modules/power/power_abm.c

b11107cb63e40a69676081870ba5305c6c089ac3 - drm/amd/display: Refactor PSR functionality into dedicated power_psr module

Wed, 22 Apr 2026 10:19:55 +0200

drm/amd/display: Refactor PSR functionality into dedicated power_psr module[Why]Extract all PSR (Panel Self Refresh) related functions from power.cinto a new power_psr.c module for better code organization andmaintainability.[How]Create new power_psr.c file containing all PSR-related functionsmoved from power.c. Remove static qualifier from shared functionsto enable cross-file access:- psr_context_to_mod_power_psr_context: Convert PSR context to module power PSR context- map_index_from_stream: Map stream to power entity index- delay_two_frames: Wait for two frame periodsAdd function declarations to header. Maintain forward declaration of structcore_power for type compatibility.Reviewed-by: Anthony Koo Signed-off-by: Lohita Mudimela Signed-off-by: Ivan Lipski Tested-by: Dan Wheeler Signed-off-by: Alex Deucher List of files: /linux/drivers/gpu/drm/amd/display/modules/power/power_abm.c

254a47ce0c8a52ff78a60f92a13b56db69f69096 - drm/amd/display: Separate ABM functions into dedicated power_abm.c file

Tue, 10 Mar 2026 13:16:01 +0100

drm/amd/display: Separate ABM functions into dedicated power_abm.c file[Why]Improves code organization by separating Adaptive BacklightModulation functionality from general power management.This modular approach enhances maintainability and makes thecodebase easier to navigate.[How]Create new power_abm.c file containing all ABM-related functions moved from power.c.Remove static qualifier from shared functions to enable cross-file access:- initialize_backlight_caps: Initialize backlight capabilities- validate_ext_backlight_caps: Validate external backlight capabilities- backlight_millipercent_to_pwm: Convert brightness percent to PWM- backlight_millipercent_to_millinit: Convert brightness percent to nits- fill_backlight_level_params: Populate backlight level parametersAdd functiondeclarations to mod_power.h header. Update CMakeLists.txt to include power_abm.c in build.Maintain forward declaration of struct core_power for type compatibility.Rename struct core_power field from 'public' to 'mod_public'.Move internal structures (backlight_state, backlight_properties,dmcu_varibright_cached_properties, core_power) to power_helpers.h toensure consistent memory layouts across compilation units.Reviewed-by: Martin Leung Signed-off-by: Lohita Mudimela Signed-off-by: James Lin Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher List of files: /linux/drivers/gpu/drm/amd/display/modules/power/power_abm.c